Combination gas and water valve.



No. 890,057. PATENTED JUNE 9, 1908. H. S. HUMPHREY. COMBINATION GAS ANDWATER VALVE.

APPLIO TION FILED JUL .19 8.

A Y 10 0 2 BHEBTBBHEET 1.

III

PATENTED JUNE 9, 190a.

. H. s. HUMPHRBY.

COMBINATION GAS-AND WATER VALVE.

APPLICATION FILED JULY 10. 1908.

2 BHEETS-SHEET 2.

' HERBERT S. HUMPHREY, OF KALAMAZOO, MICHIGAN.

GOMB INATTON GAS AND WATER VALVE.

Specification of Letters Patent.

Patented June 9, 1903.

Application filed. July 10, 1906. Serial No. 325,524.

To all whom it may concern:

.Be it known that I, HERBERT S. HUM- PIIREY, a citizen of the UnitedStates, residing at Kalamazoo, county of Kalamazoo, State of Michigan,have invented certain new and useful Improvements in Combination Gas andWater Valves, of which the following is a specification.

This invention relates to improvements in valves.

It relates particularly to improvements in automatic water and gasvalves for water heaters, although it is adapted for use in otherrelations.

. tak n on a The objects of this invention are: First, to provide animproved valve for water heaters, which compels the incoming or supplywater to pass through the heater, and also permits the water in thesystem to circulate or ass'through the heater when the supply Va ve isclosed. Second, to provide an improved automatic water and gas valve inwhich the quantity of gas delivered is con- 7 trolled by the quantity ofthe water delivered,

which may be readily adjusted. Third, to provide in a valvean improvedmeans for adjusting the delivery port of the valve. Fourth, to providean improved combination automatic water and gas valve for Water heaters,which is simple and econom ical in structure'and convenient in use, and

one which is not likely to get out of repair in use.

Further objects, and objects relating to Figure. 1 is a detall elevationof a structure embod ng the features of my invention, portions the waterheater casmg being broken away show the relation of the parts, and(.letailsonly of the circulating system being shbwn. Fig. 2 is a detailvertical section,

line corresponding to line 2 Z of /l i g. 1, showing the structuraldetails of the valves. Fig. 3 is a detail transverse section,

taken on. a line corresponding to the broken line 33 of Fig.2. Fig. 4 isan enlai ed perspective of the adjustable member or controlling the portor passage of the inlet valve.

In the drawing, the sectional views are taken looking in the directionof the little arrows at the ends of the section lines, and similarnumerals of reference refer to similar parts throughout the severalviews.

Referring to the drawin ,the casing 1 of the water heater may be 0 anydesired construction, the structure illustrated being a double wall.Within this casing is the Water heating coil 2, below which the burners,as 3, are arranged. The water heater is provided with a suitable flue,as 4, for the discharge of the gases of combustion. 5 of the waterheater leads to the circulation The discharge pipe 1 system, which ishere illustrated in conventional form only. The water supply pipe 6 v isconnected to the inlet pipe 7 of the heating coils. The gas sup ily pipe8 is connected by the pipe 9 to the urner. ,The circulation tank 10 isconnected by the return pipe 11 to the inlet pipe 7 of the heatingcoils. The water inlet pipe, the circulation pipe, and the gas supplypipe are controlled by an automatic water and gas valve, the details ofwhich are illustrated in Figs. 2 to 4, inclusive. This valve comprises acasing 12, provided with an inlet passage 13, a circulation passage 14,and an outlet or discharge passage- 15. The inlet passage 13 isconnected to the water supply pipe 6, and the circulation passage 14 isconnected to the return pipe 11 of the circulation system, while thedischarge passage 15 is connected to the inlet pipe 7 of the heater.

For convenience in referring to the parts, 1 herein designate thepassage 1.4 as the circulation passage, and the valve 17, which controlsthis passage, the circulation. valve. The valve casing 12 is providedwith a chamber for the main or inlet valve 16, intowhich the inletpassage 13 opens; and also with a chamber into which the circulationpassage 14 opens for the circulation valve 17. The inlet valve 16 is apiston valve,- and preferably carries the circulation valve 17, which ispreferably formed integral therewith, as is illustrated in theaccompanying drawing.

The valve 17 in the structure illustrated is cylindrical in form, withnotch-like ports in its lower end, which parts are open when the ,inletvalve is in its upper or closed position, and closed when the inletvalve is.o ened; so that, when the inlet valve is cosed, a circulationof water through .the heater and the circulation system is permitted.The discharge port for the in- -et* valve is formed in one side of themain valve chamber, and is preferably provided so that the delivery ofwater is increased as the valve is opened. This I preferably accomplishby tapping a hole or chamber 18 into the valve casing, so that one sideof the same opens into the inlet valve chamber. In this chamber 18, Iarrange the block 19 which is supported. adjustably therein by means ofthe stem 20, which is threaded into the block. The block '19 istapered'or inclined on its inner face, as at 21, so that, as the valve16 curves downwardly, the area of the ort is increased. The block 19 ispreferab y cylindrical in general form, and is prevented from turnin bythe pin 22, which projects into the hofia 23in the block. The

stem 20 is provided with a suitable packing,

consisting preferably of the ring 24, which is arranged against thecollar 25 of the stem. A block-like gland 26 is threaded into thecasing. Between the ring 24. and the gland 26 is a packing 27. Theseparts are all ar- 1 ranged III the 'ihig 28, thIGSM ed into the casing,which is arge enough to ermit the insertion and removal of the ock 19therethrough.

The valves 16 and 17 are so arran ed that the valve 17 is always closedwhen t e valve 16 is opened, so that, when the valve 16 is opened, thewater is compelled to ass to the heater, instead of circulating, bacthrough the circulation system. The valve is designed to beautomatically operated by the water pressure, so that, when the water is40 turned on or the pressure in the system falls below that in the suply,as is occasioned by the drawing off 0 water from the systemthe valve16 is automatically opened; and, when the ressu're is equalized,as bythe closing of a aucet,the valve 16 is again closed. A spring 29 isprovided for this purpose. This spring is preferably arranged un der thepiston valve 16, within the circulation valve, 17 and the chamber, asillustrated. When the inlet valve is closed, the circulation valve isopened, so that the water in the system is free to circulate through theheater.

The valve 16 is provided with a stop 30, which is held normally againstthe top of the valve casing by the spring. The gas valve casing 31 isconnected to the casing 12 by a suitable yoke, as 32. The gas valvecasing is provided with an inlet passage 33, to which the supply pipe 8is connected, and with a discharge passage 34, to which the burner pipe9 is connected.

The delivery of the gas is controlled by the valve 35. The structure andarrangement of the gas valve is preferably that illustrated anddescribed in my Letters Patent dated portion to the amount of Waterpassing through the main Water valve, as is pointed out in my atentabove referred to. The valves in t e accom anying drawing are shown intheir close positions. The arran ement of the pilot light valve is alsoreFerably that illustrated in my patent reerredto, the pilot burner 39being connected by the pipe 40 to the valve casing.

By arranging the parts as I have illustrated and described, the assageof the water is effectively controlled the valve being automatic in itsoperation in controlling both the delivery of the water and the gas, andpermitting the circulation of the water in the system through the heaterwhen the inlet valve is closed, and compelling the circulation of thefresh or incpming water to the heater when the inlet valve is opened.The structure" is compact and simple, and not likely to get out ofrepair.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. The combination of a valve casing having a supply passage 'acirculation passage, and an outlet passage, said casing also having aninlet valve chamber and a circulation valve chamber therein, anda portopening into said inlet valve chamber at one side thereof; a pistoninlet valve; a cylindrical circulation valve carried. by said pistonvalve; a block having an'inclined inner face arranged in said port; astem ,threaded intosaid block whereby thesaine may be adjusted to adjustthe inlet valve port; a gas a controlled by said inlet valve, for thepurpose specified.

2. The combination of a valve casing hav .ing a supply passage, acirculation passage,

and an outlet passage, said casing also having an inlet valve chamberand a circulation valve chamber therein, and a port opening into saidinlet valve chamber at'one side thereof; a piSton inlet valve; acylindrical circulation valve carried by said piston valve; a blockhaving an inclined inner face arranged in said port; means for adjustingsa d block; a gas valve; and connections for sa d gas valve to saidinlet valve, whereby said gas valve is controlled by said inlet valve,for the purpose specified.

3. The combination of a valve casing having a supply passage, acirculation passage, and an outlet passage, said casing also having aninlet valve chamber and a circulation .valve chamber therein, and a portopening into said inlet valve chamber atone side thereof; a piston inletvalve; a cylindrical circulation valve carried by said. piston valve; ablock having aninchned inner face arranged in said ort; a stem threadedinto said block where y the same may be adjusted'to adjust the inletvalve port, for the.

purpose specified.

4. The combination of a valve casing having a supply passage, acirculation passage, and an outlet passage, said casing also having aninlet valve chamber and a circulation valve chamber therein, and a portopening into said inlet valve chamber at one side thereof; a pistoninlet valve a cylindrical" circulation valve carried by said pistonvalve; a block having an inclined inner face arranged in said port;means for adjusting said block, for the purpose specified.

5. The combination of a valve casing having a supply passage, acirculation passage, and an outlet passage, said casing also having aninlet valve chamber and. a circulation valve chamber therein;,a istoninlet valve; a cylindrical circulation va ve carried by said pistonvalve; a gas valve;and connections 'or said gas valve to said inletvalve, whereby said gas valve is controlled by said inlet valve, for thepurpose specified.

6. The combination of a valve casing having a supply passage, acirculation passage, and an outlet passage; a piston inlet valve; acirculation valve carried by said piston valve; means for adjusting theport of said inlet valve; a gas valve; and connections for said gasvalve to said inlet valve, whereby said gas valve is controlled by saidinlet valve, for t e purpose specified.

7. The combination of a valve casing having a supply passage, acirculation passage, and an outlet passage; a piston inlet valve; acirculation valve. carried by said piston valve; a gas valve; andcoi'mections for said gas valve, whereby said gas valve is controlled bysaid inlet valve, for the purpose specified.

8. The combination of a-,;valve casingfhaving a supply passage, acirculation passage, and an out et passage; a piston inlet valve; acirculation valve, carried by said piston valve; means for adjusting theport of said inlet valve, for the purpose 'ieciiicd.

9. The combination of a valve casing having a valve chamber and a portchamber 0 ening into said valve chamber at one side t ereof; a valve; ablock having an inclined inner face arran ed in said ort chamber; and astem threa ed into said )lock whereby the same may be adjusted to adjust the valve port, for the purpose specified.

10. The combination of a valve casing having a valve chamber'and a portchamber 0 ening'into said valve chamber at one ,side t ereof; a valve; ablock having an inclined inner face arranged in. said port chamber; andmeans for adjusting said. block, for the purpose specified.

1.1. The combination with a water heater, of a gas burner therefor; acirculation system connected to said heater; an automatic inlet valve; acirculation valve controlled thereby; means for adjusting the port ofsaid inlet valve; a gas valve for controlling'said burner; andconnections for said gas valve to said inlet valve, whereby said gasvalve is controlled by said inlet valve, for the purpose specified.

12. The combination with a water heater, of a gas burner therefor; acirculation system comiccted to said heater; an automatic inlet valve; acirculation. valve controlled thereby; a gas valve for controlling saidburner; and connections for said valve to said inlet valve whereby saidgas valve is controlled by said inlet valve, for the purpose specified.

In witness whereof, I. have hereunto set my hand and seal in thepresence of two witnesscs.

lninnm'r s urnrmnn. LL. 5.]

Witnesses:

been (i. (iluaiaxnnno (J'IIs A. EARL.

